[Openstack] oversubscribe node

James R Penick penick at yahoo-inc.com
Wed Aug 21 22:40:38 UTC 2013


Which scheduler are you using? Also, which version of Openstack?

:)=






On 8/21/13 2:56 PM, "Steve Heistand" <steve.heistand at nasa.gov> wrote:

>Hi folks,
>
>so  Im a little confused, on my compute nodes I have the allocation ratio
>set:
>
>root at node004:~# cat /etc/nova/nova-compute.conf
>[DEFAULT]
>..
>cpu_allocation_ratio=1.0
>ram_allocation_ratio=1.0
>...
>
>but I got into a state where the node is oversubscribed.  From nova
>hypervisor-show node004:
>
>node004
>..
>vcpus_used              36
>memory_mb_used  72837
>memory_mb            64379
>vcpus                       32
>..
>
>I have zones/aggregates set up and of the instances, one was started in
>just launch it anywhere mode and another was told to start on
>a zone that is this node.
>
>In looking back I would have expected the zone specified instance be
>rejected.
>
>is this to be expected or a bug?
>
>thanks
>
>s
>
>
>-- 
>************************************************************************
> Steve Heistand                           NASA Ames Research Center
> SciCon Group                             Mail Stop 258-6
> steve.heistand at nasa.gov  (650) 604-4369  Moffett Field, CA 94035-1000
>************************************************************************
> "Any opinions expressed are those of our alien overlords, not my own."
>
># For Remedy                        #
>#Action: Resolve                    #
>#Resolution: Resolved               #
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>
>





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